Titanium complexes with octahedral geometry chelated by salen ligands adopting β-cis configuration for the ring-opening polymerisation of lactide

Abstract

Four titanium complexes based on salen ligands were prepared and employed for the ring-opening polymerisation of lactide. X-ray diffraction analysis revealed that the titanium atom was in a distorted octahedral geometry and the quadridentate ligand adopted β-cis geometry in complex 1.